Lightning Rodder banner
1 - 10 of 10 Posts

·
Registered
Joined
·
202 Posts
Discussion Starter · #1 ·
Dynoed again this morning. My last numbers were 560 rwhp and 597 rwtq with a built motor, heads, cams, KB, 100% stock exhaust, and 19 psi of boost. I have had a full exhaust in the past before this engine and was not happy with the noise. But after seeing my dyno numbers and the fact that it felt down on torque, I purchased a Dynatech LT set, twin cats, and Bassani BX cat-back. I also bought the Bassani baffles that go in the tips. My first surprise was that this LT setup was much quieter in the truck than the same basic setup I had earlier. There was one difference, the original setup used the stainless Bassani cat-back and I now am using the coated steel one. I am positive it's quieter, and I'm saying the steel unit transmits less noise to the interior than the stainless one.

To the numbers. With the LT's I couldn't get exactly 19 psi with the pulleys, it either made 18 or 20. So I did a pull at 18 psi with the LT's and made 590 rwhp and 635 rwtq. So a pound less boost made 30 rwhp and 28 rwtq more. This is my street tune with alky, 15 degrees of timing.

Then I pullied it for 21 peak boost. This was on race gas and 20 degrees of timing. It made 621 rwhp and 708 rwtq. I made one pull without the baffles and one pull with. It actually made more hp and torque with the baffles but it was so close it could just be in the dyno itself. The baffles are good for a little more noise reduction in the cab, and cost no power at the 600/700 level, so I will be running them all the time.

Jody
 

·
Registered
Joined
·
261 Posts
Great to see some decent comparisons done. That is a huge gain and worth the money if you are at those hp levels and need a more non-restrictive exhaust.
 

·
Registered
Joined
·
202 Posts
Discussion Starter · #3 ·
You know, a 75 shot from you would likely get me in the 700/800 club and into the 10's. :D

Jody
 

·
Project Dirty Dog
Joined
·
6,747 Posts
Nice Numbers
 

·
Registered
Joined
·
85 Posts
Daymn good numbers.
 

·
Registered
Joined
·
261 Posts
camcojb said:
You know, a 75 shot from you would likely get me in the 700/800 club and into the 10's. :D

Jody
Ready whenever you are. I know we can safely make the power you need for the goals you have.
 

·
Premium Member
Joined
·
13,857 Posts
WOO HOO, exactly what I needed to see
THANKS Jody, WOW thats some serious power Bro, CONGRATS, WOO HOO

621 rwhp and 708 rwtq, thats PLENTY enough to run 10s, WOO WOO WOO WOO ......
Now the 75 HP would get you closer to the 9's though :D

Jody, I had this prob at 100 HP less than you, (in my case the Factory Muffler, was holding me back) I'm surprised you got so far with 100% stock exhaust, simply amazing diff though with the improved flowing exhaust. (and extremely important to get that heat out of the motor)

My Catback clearly uncorked power for me now, hoping on dyno-ing in the next few days and joining the 600/700 club ????

CONGRATS BRO, great info and exactly what I was looking for :smt023 :smt023
 

·
Registered
Joined
·
202 Posts
Discussion Starter · #10 ·
Thanks Rob, always look forward to your posts! :D I was determined to go as far as possible with the stock exhaust, trying to keep the truck very quiet. But the HP VS Torque didn't look right, they were too close together. Glad I made the change, really woke the truck up.

Jody
 
1 - 10 of 10 Posts
Top